CN1054920A - Aluminium piston of IC engine composite mould casting process and automatic assembly line thereof - Google Patents
Aluminium piston of IC engine composite mould casting process and automatic assembly line thereof Download PDFInfo
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- CN1054920A CN1054920A CN 90110231 CN90110231A CN1054920A CN 1054920 A CN1054920 A CN 1054920A CN 90110231 CN90110231 CN 90110231 CN 90110231 A CN90110231 A CN 90110231A CN 1054920 A CN1054920 A CN 1054920A
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- 238000005266 casting Methods 0.000 title claims abstract description 32
- 229910052782 aluminium Inorganic materials 0.000 title claims abstract description 28
- 239000004411 aluminium Substances 0.000 title claims abstract description 27
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 title claims abstract description 27
- 239000002131 composite material Substances 0.000 title claims abstract description 17
- 229910052751 metal Inorganic materials 0.000 claims abstract description 33
- 239000002184 metal Substances 0.000 claims abstract description 33
- 238000004519 manufacturing process Methods 0.000 claims abstract description 15
- 238000010791 quenching Methods 0.000 claims abstract description 12
- 230000000171 quenching effect Effects 0.000 claims abstract description 10
- 239000004576 sand Substances 0.000 claims abstract description 6
- 238000002844 melting Methods 0.000 claims abstract description 5
- 230000008018 melting Effects 0.000 claims abstract description 5
- 230000000630 rising effect Effects 0.000 claims abstract description 5
- 238000010438 heat treatment Methods 0.000 claims abstract description 4
- 239000004115 Sodium Silicate Substances 0.000 claims abstract description 3
- 229910052911 sodium silicate Inorganic materials 0.000 claims abstract description 3
- 229910000831 Steel Inorganic materials 0.000 claims description 22
- 239000010959 steel Substances 0.000 claims description 22
- 238000002485 combustion reaction Methods 0.000 claims description 10
- 235000017166 Bambusa arundinacea Nutrition 0.000 claims description 7
- 235000017491 Bambusa tulda Nutrition 0.000 claims description 7
- 241001330002 Bambuseae Species 0.000 claims description 7
- 235000015334 Phyllostachys viridis Nutrition 0.000 claims description 7
- 239000011425 bamboo Substances 0.000 claims description 7
- 230000032683 aging Effects 0.000 claims description 3
- 238000005520 cutting process Methods 0.000 claims description 3
- 239000007921 spray Substances 0.000 claims description 3
- 208000034189 Sclerosis Diseases 0.000 claims description 2
- 238000005422 blasting Methods 0.000 claims description 2
- 238000007664 blowing Methods 0.000 claims description 2
- 235000019353 potassium silicate Nutrition 0.000 claims description 2
- 238000007670 refining Methods 0.000 claims description 2
- 210000003296 saliva Anatomy 0.000 claims description 2
- NTHWMYGWWRZVTN-UHFFFAOYSA-N sodium silicate Chemical compound [Na+].[Na+].[O-][Si]([O-])=O NTHWMYGWWRZVTN-UHFFFAOYSA-N 0.000 claims description 2
- 238000000034 method Methods 0.000 abstract description 6
- 230000000149 penetrating effect Effects 0.000 abstract 1
- 238000005516 engineering process Methods 0.000 description 14
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical group O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 8
- 238000004512 die casting Methods 0.000 description 5
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 5
- 238000001816 cooling Methods 0.000 description 4
- 239000007788 liquid Substances 0.000 description 4
- 239000002918 waste heat Substances 0.000 description 4
- 229910000838 Al alloy Inorganic materials 0.000 description 1
- 244000035744 Hura crepitans Species 0.000 description 1
- 206010038743 Restlessness Diseases 0.000 description 1
- 239000004927 clay Substances 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 235000019628 coolness Nutrition 0.000 description 1
- 238000007872 degassing Methods 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 238000011049 filling Methods 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 239000003027 oil sand Substances 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 239000003973 paint Substances 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 239000000377 silicon dioxide Substances 0.000 description 1
- 239000002023 wood Substances 0.000 description 1
- 229910000634 wood's metal Inorganic materials 0.000 description 1
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- Pistons, Piston Rings, And Cylinders (AREA)
Abstract
A kind of composite mould casting process and automatic assembly line thereof of producing aluminium piston of IC engine, its profile of the casting mold of this casting technique is a metal mold, inner core is for penetrating the sand sodium silicate sand core, adopt horizontal rising pouring, top riser, toe oral-lateral to pouring type, be incubated the as cast condition immediate quenching continuously.This automatic assembly line is made up of opening, clearance-type mould conveyer and open type machine, closed type machine, locking type roller channel, other is equipped with subsidiary engines such as melting furnace, core making machine, cored machine, Equipment for Heating Processing and manipulator and constitutes a complete automatic assembly line, this production transfer matic is flexible, the mixed flow production of applicable different product.
Description
The present invention relates to a kind of casting technique and equipment thereof of the piston with the combustion chamber.
Produce the aluminium piston at present both at home and abroad and generally adopt gravity die casting process or composite mould casting process.
The metal mold that the toe piston mouth makes progress generally is formed by combining by two slit bamboo or chopped woods symmetry external form, some the metal inner cavity cores that are combined into, pair of metal Xiao hole core, locating piece, base plate and axle Xiao.External form is by locating piece and axle Xiao and base plate location, and metal inner cavity core and metal Xiao hole core are contained on the external form, and also on external form, the anti-steel disc that expands is placed on the metal inner cavity core side notes clearance type dead head.Loose core and open form by craft or hydraulic mechanism.The general water flowing cooling of base plate and Xiao Kongxin.
The metal mold that the toe piston mouth is downward, basic identical with the metal mold that the toe mouth makes progress.Its difference is many top types, and rising head is located on the type of top.Two slit bamboo or chopped wood external forms are by the track and the location, the outer garden of centring ring of casting machine, and the metal inner cavity core is by location, garden in the centring ring, and wear-resisting circle is placed on the external form.But all water flowing coolings of external form, Xiao Kongxin, inner chamber core.Open form, loose core and all finish by gravity-diecasting machine.
The downward composite mould of toe piston mouth is made up of two slit bamboo or chopped woods symmetry metal external form, metal Xiao hole core, base plate, axle Xiao, lock mechanism and core.External form is by base plate flange and axle Xiao Dingwei, and core is inserted in the flange center, and metal Xiao hole core inserts on the external form.Gate form has side to annotate two kinds of top riser and teeming top risers.Core is clay sand core or oil core, and hand moulding does not have casting and quenches.This kind technology should not be produced the aluminium piston of anti-expand steel disc or steel ring, wear-resisting circle and combustion chamber.This technology now substantially need not owing to self shortcoming.
External production aluminium piston all adopts the metal mold technology of downward, the vertical side notes of toe mouth, top riser, adopts the gravity-diecasting machine cast.Have only cast aluminium factory of General Motors Overseas Corporation on this basis, be equipped with mold insert machine and the casting machine of settling the anti-steel disc that expands, but still be limited to the cast of gravity-diecasting machine multiple spot.
After all adopting cooling, above-mentioned aluminium casting for piston technology reheats quenching technical, quench though external indivedual producer has to cast with casting machine the time, it is a quenching tank or air-cooled, and hardening heat does not add control naturally with it, range of temperature is big, is difficult to guarantee casting quality.
There is following distinct disadvantage in above-mentioned three kinds of aluminium casting for piston technologies:
1, metal-coredly restricts product design and update, shortened the life-span of whole metal mold;
2, clearance type dead head feeding capacity is poor;
3, metal-cored extraction mechanism complexity has limited the realization that metal mold technology automatic streamline is produced; Thereby production efficiency is low, and is multiple spot cast, and production distribution becomes the stall with goods spread out on the ground for sale type, and operating environment is dirty, unrest, heat, and labor strength is big;
4, the metal mold that makes progress of toe mouth though can cast out the piston that the anti-steel disc that expands is arranged, can't cast out the aluminium piston of anti-expand steel ring and combustion chamber of band;
Though 5, the downward metal mold of toe mouth can cast out the piston that the anti-steel disc that expands, anti-expand steel ring and wear-resisting circle are arranged, the piston that cast out combuster is just powerless.It has limited structure of piston;
6, above-mentioned aluminium casting for piston technology all can't be utilized as cast condition waste heat continuous quenching;
7, the inner chamber core of composite mould generally adopts clay-bonded sand or oil-sand, and wet strength is low, spray paint and baking sand, and fuse is yielding, so dimensional accuracy is low;
8, gravity-diecasting machine has been deepened the restriction to product structure.
Purpose of the present invention is intended to adopt new flexible cast technology, eliminates the restriction to product design, realizes flowing water production in enormous quantities, reduces cost, and enhances productivity and improves operating environment.
For achieving the above object, the technology solution that the present invention adopts is: replace the metal inner core with sodium silicate sand core, and adopt horizontal rising pouring, top riser, toe mouth to realize to the as cast condition immediate quenching technology of cast form such as side and insulation and temperature adjustment continuously and the automation flowing water mode of production.The present invention not only can cast out aluminium piston simple in structure, also can cast out the aluminium piston with wear-resisting circle and anti-expand steel ring or steel disc, and can also cast out the aluminium piston or the more complicated structure of band combustion chamber.
Below in conjunction with accompanying drawing embodiment of the present invention are briefly explained.
Fig. 1 is composite mould figure.
Fig. 2 is the aluminium casting for piston flow sheet that adopts composite mould technology.
Be that example is illustrated with wear-resisting circle, the anti-complicated aluminium piston that expands steel ring and combustion chamber now with casting.
Fig. 1 has shown composite mould assembling situation.Composite mould is to adopt by two slit bamboo or chopped woods symmetry and the metal external form (1), metal Xiao hole core (9), inner chamber core (8), the locating piece (4) that have a running channel to be formed by combining.Locating piece (4) is provided with cast gate.Metal external form (1) is placed on the casting mold dolly (6), the placing flat of toe piston saliva, and metal external form (1) can go up slip at the slideway (5) of dolly (6).
According to the inner-cavity structure of above-mentioned piston, make inner chamber core (8) and combustion chamber core (3).Its preparation method is that waterglass and sand are equipped with according to a certain percentage with after the even mixing of puddle mixer (15), is made by core shooter (16), and uses CO
2The sclerosis of blowing is shaped, and the inner chamber core can be made into shell core; The anti-steel ring (10) that expands that will be heated stove (20) heating is enclosed within on inner chamber core (8) relevant position, and the steel disc of maybe will preventing expanding is placed on the metal external form (1); Simultaneously wear-resisting circle (2) is assigned on the relevant position of location fast (4); To install the inner chamber core (8) of the anti-steel ring that expands and combustion chamber core (3) again places just location core print seat (7) upward and on the metal external form (1) respectively; Metal Xiao hole core (9) is contained in the inboard respective aperture seat of two slit bamboo or chopped wood metal external forms (1).Casting mold dolly (6) is placed on the track of mould conveyer (23).
Fig. 2 has shown the overall process of putting into the spray output from raw material:
Aluminium alloy ingots (11) is added in the melting furnace (12), be smelted into qualified aluminium liquid after, change refining in the holding furnace (13), degasification, temperature adjustment over to, meet the pouring technology requirement until aluminium liquid.Treat that casting mold dolly (6) moves forward with the track of conveyer (23), with the composite mould mould assembly, after locking type roller channel navigates to cast station and locking automatically, pour into a mould again through closed type machine (21).Composite mould after the cast is cooling voluntarily in the process that moves forward with dolly, again through open type machine (24) open form.The foundry goods of its waste heat in 420 °～480 ℃ scopes sent in the continuous holding furnace (25) temperature adjustment after temperature required after the open form by subsidiary engine, enters quenching tank (26) automatically and carries out as cast condition waste heat quench and low pressure hydro-blasting.Metal external form after the open form is got back to original position along conveyer (23) track, circulates next time.The old sand (27) that quenching tank (26) is removed can be delivered to former sandbox (14) and continue to use after cleaning treatment.Aluminium piston after the quenching changes cutting machine (28) excision dead head over to through servicing unit, sends into aging furnace (29) then and carries out Ageing Treatment, is spray-aluminium piston.Whole technical process finishes.
This automatic assembly line is made up of opening, clearance-type mould conveyer (23), closed type machine (21), open type machine (24), locking type roller channel (22) and subsidiary engine, and wherein subsidiary engine comprises roller disturb by making noise machine (15), some core shooters (16), heating furnace (20), several melting furnaces (12), several holding furnaces (13), cored machine (32), mold insert machine (33), casting machine (34) and some manipulators (31).The conveying beat of mould conveyer and the outfit of subsidiary engine quantity determine that according to producing guiding principle per year the subsidiary engine quantity that is equipped with in the accompanying drawing 2 and 24 dollies are equipped with by producing 1200000 aluminium pistons of guiding principle per year.But following core, lay wear-resisting circle, anti-expand steel ring or both manually-operateds of operation such as steel disc, cast and removing from mould, also configurable subsidiary engine.This transfer matic is flexible, applicable to the mixed flow production of different product.
The present invention compared with prior art has the following advantages:
1, owing to adopts the liquid extract of as cast condition waste heat; Cut down the consumption of energy significantly.
2, owing to adopted the toe oral-lateral to, horizontal rising pouring, top riser pouring technology, aluminum liquid filling type is steady, and it is air-breathing to reduce oxidation, favourable scum silica frost, and improved the feeding condition, thus improved casting quality.
3, help model change, improved the flexibility of technology simultaneously.Promptly be easy to realize the mixed flow production of different product.
4, because of adopting the automatic production line mode to enhance productivity greatly, reduce cost, improved operating environment, reduced working strength of workers.
But the various aluminium pistons of 5 cast structure complexity.
Optimum implementation explanation of the present invention.
With the manually-operated operation that following core, peace are gone into wear-resisting circle, prevented bloated steel ring or steel disc, cast and removing from mould, with cored machine (32) mold insert machine (33), casting machine (34) and several manipulators (31) replacement promptly become supermatic foundry production line.This embodiment is suitable for a large amount of flowing water productions, can raise labour productivity significantly, reduces production costs and working strength of workers.
Claims (4)
1, a kind of aluminium piston of IC engine composite mould casting process, it comprises the following steps:
(1) by the aluminium piston structure of required casting, after proportioning is evenly mixed with puddle mixer (15) according to a certain percentage with waterglass and sand, make inner chamber core (8) and combustion chamber core (3) by core shooter (16), use CO
2The sclerosis of blowing is shaped;
(2) the warmed-up anti-steel ring (10) that expands is enclosed within on inner chamber core (8) relevant position, steel disc is positioned on the relevant position of metal external form (1) if the anti-steel disc that expands of employing then will be prevented expanding, and simultaneously wear-resisting circle (2) is assigned on the locating piece (4);
(3) the two slit bamboo or chopped woods symmetries metal external forms (1) that Xiao's mesoporous metal core (9) will be housed are placed on the casting mold dolly (6) of mould conveyer, and the placing flat of toe saliva, and metal external form (1) can go up at the slideway (5) of dolly (6) and slide;
(4) will package the inner chamber core (8) of the anti-steel ring that expands and combustion chamber core (3) places just location core print seat (7) upward and on the metal external form (1) respectively;
(5) closed type machine (21) with the composite mould mould assembly after, through locking type roller channel (22) automatically behind the positioning and locking, through melting furnace (12) fusing again by holding furnace (13) refining cast;
(6) cool off with moving forward voluntarily of conveyer, through open type machine (24) open form;
(7) foundry goods after the open form is sent in the continuous holding furnace (25) temperature adjustment after temperature required by subsidiary engine, enters quenching tank (26) automatically and carries out as cast condition immediate quenching and low pressure hydro-blasting; And casting mold is got back to original position along conveyor rail, circulates next time;
(8) foundry goods is sent into by auxiliary body and is changed shaft furnace (29) over to behind cutting machine (28) the cutting dead head and carry out being spray after the Ageing Treatment.
2, a kind of casting mold that is used for the aluminium piston of IC engine composite mould casting process, it is formed by combining by two slit bamboo or chopped woods symmetry metal external form (1), metal Xiao hole core (9), inner chamber core (8), locating piece (4), it is characterized in that: inner chamber core (8) and combustion chamber core (3) are sodium silicate sand core, adopt horizontal rising pouring, top riser, toe mouth to the side pouring type, locating piece (4) is provided with cast gate.
3, a kind of production transfer matic that is used for claim 1 or 2 described aluminium piston of IC engine composite mould casting process, this transfer matic is made up of opening, clearance-type mould conveyer (23), closed type machine (21), open type machine (24), locking type roller channel (22) and subsidiary engine.
4, the subsidiary engine of the production transfer matic of aluminium piston of IC engine composite mould casting process according to claim 3 comprises: puddle mixer (15), some core shooters (16), heating furnace (20), several melting furnaces (12), several holding furnaces (13), cored machine (32), mold insert machine (33), casting machine (34) and some manipulators (31).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 90110231 CN1054920A (en) | 1990-12-26 | 1990-12-26 | Aluminium piston of IC engine composite mould casting process and automatic assembly line thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 90110231 CN1054920A (en) | 1990-12-26 | 1990-12-26 | Aluminium piston of IC engine composite mould casting process and automatic assembly line thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1054920A true CN1054920A (en) | 1991-10-02 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 90110231 Pending CN1054920A (en) | 1990-12-26 | 1990-12-26 | Aluminium piston of IC engine composite mould casting process and automatic assembly line thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1054920A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102248126A (en) * | 2011-07-08 | 2011-11-23 | 刘宁 | Lost foam automatic line |
| CN103639369A (en) * | 2013-12-25 | 2014-03-19 | 湖南江滨机器（集团）有限责任公司 | Piston casting method and mould |
| CN107282877A (en) * | 2017-07-25 | 2017-10-24 | 山东省科学院新材料研究所 | It is a kind of to regenerate the method for recycling sodium silicate sand |
| CN113894056A (en) * | 2020-07-07 | 2022-01-07 | 细美事有限公司 | Semiconductor element pressurizing device and test handler having the same |
-
1990
- 1990-12-26 CN CN 90110231 patent/CN1054920A/en active Pending
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102248126A (en) * | 2011-07-08 | 2011-11-23 | 刘宁 | Lost foam automatic line |
| CN103639369A (en) * | 2013-12-25 | 2014-03-19 | 湖南江滨机器（集团）有限责任公司 | Piston casting method and mould |
| CN103639369B (en) * | 2013-12-25 | 2016-01-20 | 湖南江滨机器（集团）有限责任公司 | A kind of method for casting piston and casting for piston mould |
| CN107282877A (en) * | 2017-07-25 | 2017-10-24 | 山东省科学院新材料研究所 | It is a kind of to regenerate the method for recycling sodium silicate sand |
| CN107282877B (en) * | 2017-07-25 | 2018-09-28 | 山东省科学院新材料研究所 | A method of regeneration recycles sodium silicate sand |
| CN113894056A (en) * | 2020-07-07 | 2022-01-07 | 细美事有限公司 | Semiconductor element pressurizing device and test handler having the same |
| CN113894056B (en) * | 2020-07-07 | 2023-09-22 | 细美事有限公司 | Semiconductor element pressurizing device and test handler provided with same |
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